sforkowany z mirror/rnsutils
Create initial working version
It is still mostly undocumented but produces correct xrni out of simple sf2 files.master
commit
22a086a8be
Plik binarny nie jest wyświetlany.
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import pkgutil
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import pprint
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from zipfile import ZipFile, ZIP_DEFLATED
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import io
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from lxml import etree, objectify
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from lxml.objectify import ObjectifiedElement
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from .utils import guesstimate_audio_extension
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class RenoiseSample(ObjectifiedElement):
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pass
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class RenoiseModulationSet(ObjectifiedElement):
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@property
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def adhsr_release(self):
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return self.Devices.SampleAhdsrModulationDevice.Release.Value
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@adhsr_release.setter
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def adhsr_release(self, value):
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self.Devices.SampleAhdsrModulationDevice.Release.Value = value
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@property
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def lp_cutoff(self):
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return self.Devices.SampleMixerModulationDevice.Cutoff.Value
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@lp_cutoff.setter
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def lp_cutoff(self, value):
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self.Devices.SampleMixerModulationDevice.Cutoff.Value = value
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class RenoiseInstrument(object):
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def __init__(self, filename=None, template_filename="empty-31.xrni"):
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self.root = None
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self.sample_data = None
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self.sample_template = None
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self.sample_modulation_set = None
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if filename is not None:
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self.load(filename)
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else:
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try:
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self.load(template_filename)
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except FileNotFoundError:
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self.load(io.BytesIO(pkgutil.get_data('rnsutils', 'data/{}'.format(template_filename))))
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self.extract_sample_template()
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self.extract_modulation_set_template()
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def extract_sample_template(self):
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self.sample_template = self.root.SampleGenerator.Samples.Sample[0]
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# delete all Sample node in the xml
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samples_node = self.root.SampleGenerator.Samples
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for original_sample in samples_node.Sample:
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samples_node.remove(original_sample)
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# delete all sample data
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self.sample_data = []
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def extract_modulation_set_template(self):
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self.modulation_set_template = self.root.SampleGenerator.ModulationSets.ModulationSet[0]
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# delete all modulation node in the xml
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modulation_set_node = self.root.SampleGenerator.ModulationSets
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for original_modulation_set in modulation_set_node.ModulationSet:
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modulation_set_node.remove(original_modulation_set)
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def load(self, filename):
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from .lookup import renoise_parser
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with ZipFile(filename) as z:
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self.root = etree.fromstring(z.read("Instrument.xml"), renoise_parser)
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self.sample_data = [z.read(sample_filename) for sample_filename in sorted(z.namelist()) if
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sample_filename.startswith('SampleData')]
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def save(self, filename):
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with ZipFile(filename, 'w', compression=ZIP_DEFLATED) as z:
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objectify.deannotate(self.root, cleanup_namespaces=True, xsi_nil=True)
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z.writestr("Instrument.xml", etree.tostring(self.root, pretty_print=True))
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for sample_idx, sample in enumerate(self.sample_data):
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z.writestr('SampleData/Sample{0:02} {1}.{2}'.format(sample_idx, self.root.SampleGenerator.Samples.
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Sample[sample_idx].Name,
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guesstimate_audio_extension(sample) or "wav"),
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sample)
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@property
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def samples(self):
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return list(self.root.SampleGenerator.Samples.Sample)
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@property
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def name(self):
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return self.root.Name
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@name.setter
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def name(self, value):
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self.root.Name = value
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if __name__ == "__main__":
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instrument = RenoiseInstrument('basic.xrni')
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pprint.pprint(instrument)
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pprint.pprint(instrument.samples)
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# s = instrument.samples[0]
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# print(s.foo())
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instrument.save('generated.xrni')
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from lxml import etree
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from lxml.objectify import ObjectifyElementClassLookup
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from .instrument import RenoiseSample, RenoiseModulationSet
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class RenoiseClassLookup(etree.CustomElementClassLookup):
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def __init__(self):
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super(RenoiseClassLookup, self).__init__(fallback=ObjectifyElementClassLookup())
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def lookup(self, node_type, document, namespace, name):
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if name == 'Sample':
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return RenoiseSample
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elif name == 'ModulationSet':
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return RenoiseModulationSet
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return None
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renoise_parser = etree.XMLParser()
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renoise_parser.setElementClassLookup(RenoiseClassLookup())
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# sf2toxrni. convert sound font 2 file to renoise instrument
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# Copyright (C) 2016 Olivier Jolly
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import argparse
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import logging
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import math
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import sys
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import io
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import os
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from copy import deepcopy
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from rnsutils.instrument import RenoiseInstrument
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from sf2utils.sf2parse import Sf2File, Sf2Gen
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__date__ = '2016-01-22'
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__updated__ = '2016-01-25'
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__author__ = 'olivier@pcedev.com'
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class Sf2ToXrni(object):
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WHITELIST_UNUSED_GEN_OPERS = {Sf2Gen.OPER_INITIAL_ATTENUATION}
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def __init__(self, show_unused=False, **kwargs):
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self.show_unused = show_unused
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self.unused_gens = set()
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def convert_bag(self, sf2_bag, renoise_sample, renoise_modulation_set, default_sample, default_modulation_set):
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renoise_sample.LoopRelease = sf2_bag.sample_loop_on_noteoff
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renoise_sample.LoopMode = "Forward" if sf2_bag.sample_loop else "Off"
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renoise_sample.LoopStart = sf2_bag.cooked_loop_start
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renoise_sample.LoopEnd = sf2_bag.cooked_loop_end
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renoise_sample.Panning = (sf2_bag.pan or 0) + 0.5
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renoise_sample.Transpose = sf2_bag.tuning or 0
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renoise_sample.FineTune = int(128 * (sf2_bag.fine_tuning or 0) / 100.)
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renoise_modulation_set.adhsr_release = self.to_attenuation(
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sf2_bag.volume_envelope_release) if sf2_bag.volume_envelope_release \
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else default_modulation_set.adhsr_release
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renoise_modulation_set.lp_cutoff = self.freq_to_cutoff(
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sf2_bag.lp_cutoff) if sf2_bag.lp_cutoff else default_modulation_set.lp_cutoff
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renoise_sample.Mapping.BaseNote = sf2_bag.base_note or 60
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renoise_sample.Mapping.NoteStart, renoise_sample.Mapping.NoteEnd = sf2_bag.key_range or (0, 119)
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renoise_sample.Mapping.VelocityStart, renoise_sample.Mapping.VelocityEnd = sf2_bag.velocity_range or (0, 127)
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def load_global_sample_settings(self, sf2_instrument, renoise_global_sample, renoise_global_modulation_set):
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global_chorus_send = 0
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global_reverb_send = 0
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for sf2_bag in sf2_instrument.bags:
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if sf2_bag.sample is None:
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self.convert_bag(sf2_bag, renoise_global_sample, renoise_global_modulation_set, renoise_global_sample,
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renoise_global_modulation_set)
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global_chorus_send = sf2_bag.chorus_send or 0
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global_reverb_send = sf2_bag.reverb_send or 0
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return global_chorus_send, global_reverb_send
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def load_default_sample_settings(self, renoise_global_sample, renoise_global_modulation_set):
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renoise_global_modulation_set.lp_cutoff = self.freq_to_cutoff(20000)
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renoise_global_modulation_set.ahdsr_release = 0
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def convert_instrument(self, sf2_instrument, renoise_instrument):
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# convert instrument meta data
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renoise_instrument.name = sf2_instrument.name
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# load global properties if any
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renoise_global_sample = deepcopy(renoise_instrument.sample_template)
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renoise_global_modulation_set = deepcopy(renoise_instrument.modulation_set_template)
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self.load_default_sample_settings(renoise_global_sample, renoise_global_modulation_set)
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global_chorus_send, global_reverb_send = self.load_global_sample_settings(sf2_instrument, renoise_global_sample,
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renoise_global_modulation_set)
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chorus_send = []
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reverb_send = []
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bag_idx = 0
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for sf2_bag in sf2_instrument.bags:
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# skip global zone
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if sf2_bag.sample is None:
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continue
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# convert sample meta data in xml
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renoise_sample = deepcopy(renoise_instrument.sample_template)
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renoise_modulation_set = deepcopy(renoise_instrument.modulation_set_template)
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# link sample to its dedicated modulation set
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renoise_sample.ModulationSetIndex = bag_idx
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self.convert_bag(sf2_bag, renoise_sample, renoise_modulation_set, renoise_global_sample,
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renoise_global_modulation_set)
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renoise_sample.Name = sf2_bag.sample.name
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renoise_instrument.root.SampleGenerator.Samples.append(renoise_sample)
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renoise_instrument.root.SampleGenerator.ModulationSets.append(renoise_modulation_set)
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# keep track of chorus
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sample_chorus_send = sf2_bag.chorus_send
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if sample_chorus_send:
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chorus_send.append(sample_chorus_send)
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# keep track of reverb
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sample_reverb_send = sf2_bag.reverb_send
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if sample_reverb_send:
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reverb_send.append(sample_reverb_send)
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# copy wav content from sf2 to renoise
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wav_content = io.BytesIO()
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sf2_bag.sample.export(wav_content)
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renoise_instrument.sample_data.append(wav_content.getvalue())
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# check which generator where not used from the sf2, excluding those which have no mapping or are
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# ignored on purpose
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current_instrument_unused_gens = {gen for gen in sf2_bag.unused_gens if
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gen.oper not in self.WHITELIST_UNUSED_GEN_OPERS}
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self.unused_gens |= current_instrument_unused_gens
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if current_instrument_unused_gens and self.show_unused:
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sys.stderr.write("Unused generator(s) for instrument {}, bag #{}:\n{}\n".format(
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renoise_instrument.name, bag_idx,
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"\n".join([gen.pretty_print() for gen in current_instrument_unused_gens])))
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bag_idx += 1
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# use average reverb send
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try:
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renoise_instrument.root.find('GlobalProperties/*[Name="SF2 reverb"]').Value = (0 if len(
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reverb_send) == 0 else sum(reverb_send) / float(len(reverb_send))) + global_reverb_send
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except AttributeError:
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pass
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# usa average chorus send
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try:
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renoise_instrument.root.find('GlobalProperties/*[Name="SF2 chorus"]').Value = (0 if len(
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chorus_send) == 0 else sum(chorus_send) / float(len(chorus_send))) + global_chorus_send
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except AttributeError:
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pass
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def freq_to_cutoff(self, param):
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return 127. * max(0, min(1, math.log(param / 130.) / 5))
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def to_attenuation(self, envelope_attenuation):
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return math.pow((envelope_attenuation or 0) / 60., 1 / 3.)
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def main(argv=None):
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program_name = os.path.basename(sys.argv[0])
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program_version = "v0.5"
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program_build_date = "%s" % __updated__
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program_version_string = '%%prog %s (%s)' % (program_version, program_build_date)
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program_longdesc = '''Convert sf2 file into renoise instrument'''
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program_license = "GPL v3+ 2016 Olivier Jolly"
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if argv is None:
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argv = sys.argv[1:]
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try:
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parser = argparse.ArgumentParser(epilog=program_longdesc,
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description=program_license)
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parser.add_argument("-d", "--debug", dest="debug", action="store_true",
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default=False,
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help="debug parsing [default: %(default)s]")
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parser.add_argument("-q", "--quiet", dest="quiet", action="store_true", default=False,
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help="quiet operation [default: %(default)s")
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parser.add_argument("-u", "--unused", dest="show_unused", action="store_true", default=True)
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parser.add_argument("--no-unused", dest="show_unused", action="store_false")
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parser.add_argument("-o", "--ouput-dir", dest="output_dir",
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help="output directory [default: current directory]")
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parser.add_argument("sf2_filename", help="input file in SoundFont2 format")
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# process options
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opts = parser.parse_args(argv)
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except Exception as e:
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indent = len(program_name) * " "
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sys.stderr.write(program_name + ": " + repr(e) + "\n")
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sys.stderr.write(indent + " for help use --help")
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return 2
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if opts.debug:
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logging.root.setLevel(logging.DEBUG)
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else:
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logging.root.setLevel(logging.INFO)
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with open(opts.sf2_filename, "rb") as sf2_file:
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sf2 = Sf2File(sf2_file)
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# print(sf2.pretty_print())
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sf2_to_xrni = Sf2ToXrni(**vars(opts))
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for instrument_idx, sf2_instrument in enumerate(sf2.instruments):
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if sf2_instrument.is_sentinel():
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continue
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if not opts.quiet:
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print("Converting '{}'...".format(sf2_instrument.name), end='')
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# noinspection PyBroadException
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try:
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renoise_instrument = RenoiseInstrument()
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sf2_to_xrni.convert_instrument(sf2_instrument, renoise_instrument)
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output_filename = os.path.join(opts.output_dir or '',
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'{}_{}.xrni'.format(instrument_idx, renoise_instrument.name))
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# noinspection PyTypeChecker
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renoise_instrument.save(output_filename)
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if not opts.quiet:
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print(" saved {}".format(output_filename))
|
||||||
|
except Exception:
|
||||||
|
if not opts.quiet:
|
||||||
|
print(" FAILED")
|
||||||
|
logging.exception("Failed to convert instrument")
|
||||||
|
|
||||||
|
# pprint.pprint(sf2.samples)
|
||||||
|
# sf2.samples[3].export('/tmp/test.wav')
|
||||||
|
|
||||||
|
# pprint.pprint(sf2.presets)
|
||||||
|
# pprint.pprint(sf2.instruments)
|
||||||
|
#
|
||||||
|
# for instrument in sf2.instruments:
|
||||||
|
# print(instrument.pretty_print())
|
||||||
|
|
||||||
|
return 0
|
||||||
|
|
||||||
|
|
||||||
|
if __name__ == "__main__":
|
||||||
|
sys.exit(main())
|
|
@ -0,0 +1,4 @@
|
||||||
|
def guesstimate_audio_extension(data):
|
||||||
|
if len(data) > 8 and data[0:8] == b'fLaC\0\0\0\x22':
|
||||||
|
return "flac"
|
||||||
|
return None
|
Ładowanie…
Reference in New Issue